Hi, I am trying to make my SDIO wifi card work on beagleboard. When the driver tries to read or write SDIO function register , it is generally 1 or 4 byte read/write. And buffer used is mostly on stack. So, the kernel crashes while doing dma_map_sg on that buffer. Using kmalloc ed buffer in SDIO read/write avoids this problem.
I am using 2.6.28-omap1. Will upgrading to recent kernel allow the buffer on stack to be used in SDIO read/write functions.? sdio_readl/sdio_writel uses its own DMA ble buffer. But for some reasons I want to avoid it. I noticed some commits related to scatter-gather emulation. Is it related to the problem? thanks in advance. Regards, Kalpesh -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
